CA2127723A1 - Gripping device for timber - Google Patents

Gripping device for timber

Info

Publication number
CA2127723A1
CA2127723A1 CA002127723A CA2127723A CA2127723A1 CA 2127723 A1 CA2127723 A1 CA 2127723A1 CA 002127723 A CA002127723 A CA 002127723A CA 2127723 A CA2127723 A CA 2127723A CA 2127723 A1 CA2127723 A1 CA 2127723A1
Authority
CA
Canada
Prior art keywords
timber
timbers
gripping device
teeth
parallel portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002127723A
Other languages
French (fr)
Other versions
CA2127723C (en
Inventor
Donald C. Nickel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2127723A1 publication Critical patent/CA2127723A1/en
Application granted granted Critical
Publication of CA2127723C publication Critical patent/CA2127723C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B27/00—Apparatus for climbing poles, trees, or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/081—Rungs or other treads comprising anti-slip features
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ladders (AREA)

Abstract

A gripping device is provided for use with vertical or near vertical timbers on building sites, especially with 2" x 4", 2" x 6", or 2" x 8"
planks, and which allows such timbers to be used with a series of the devices forming steps of a temporary ladder. The timber may be leaning against a surface, or may be part of a scaffold or studs of a house. The device may be formed of a single piece of rod, or as a casting. 1t has a closed loop part suitable for use as a step, and also has a retaining part, the retaining part and loop having parallel portions defining an open sided recess for receiving the timber. At least one of the parallel portions has a set of teeth facing the other parallel portion, such that the device can be slid sideways on to a timber and can be pivoted down to cause the teeth to engage the timber and prevent further movement of the device.
CA002127723A 1993-07-15 1994-07-05 Gripping device for timber Expired - Fee Related CA2127723C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9205393A 1993-07-15 1993-07-15
US08/092,053 1993-07-15
US08/243,924 1994-05-17
US08/243,924 US5407025A (en) 1993-07-15 1994-05-17 Gripping device for timber

Publications (2)

Publication Number Publication Date
CA2127723A1 true CA2127723A1 (en) 1995-01-16
CA2127723C CA2127723C (en) 2003-12-16

Family

ID=26784856

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002127723A Expired - Fee Related CA2127723C (en) 1993-07-15 1994-07-05 Gripping device for timber

Country Status (2)

Country Link
US (1) US5407025A (en)
CA (1) CA2127723C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810113A (en) * 1996-09-30 1998-09-22 Jones; Earl R. Portable tree climbing device
US5845743A (en) * 1996-10-04 1998-12-08 Dechant; George A. Post step gripping device
GB2320173A (en) * 1996-12-12 1998-06-17 John Harris Demountable tool
US6247553B1 (en) 2000-01-20 2001-06-19 Darren L. Jones Step assembly for t-post, components therefor and methods of making the same
US20040099478A1 (en) * 2002-11-27 2004-05-27 Xerox Corporation Climbing apparatus and method
US20040129496A1 (en) * 2003-01-07 2004-07-08 Dale Clark Step attachment
US7076849B2 (en) * 2003-12-01 2006-07-18 Callaway Golf Company Method and apparatus for installing a grip on a golf club shaft
FR2929527A1 (en) * 2008-04-07 2009-10-09 Raymond Laurent Rungless ladder for being fixed to e.g. wall, has autoblocking footrests provided on posts and fixed to each other without any movements or mobile mechanism of components, where each footrest is formed from single piece or assembled pieces
US11944852B2 (en) * 2022-08-02 2024-04-02 John H Meredith Emergency firefighting climbing device and system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA689985A (en) * 1964-07-07 E. Erwin Harold Column climber
CA560528A (en) * 1958-07-22 J. Lajoie Bernard Steel beam climbers
US244298A (en) * 1881-07-12 Locking-latch
US1312399A (en) * 1919-08-05 By fannie brown
US1098945A (en) * 1912-07-25 1914-06-02 Charles E Frederick Pole-scaffold.
US2086280A (en) * 1934-12-14 1937-07-06 Crane Packing Co Support
CH313127A (en) * 1953-04-10 1956-03-31 Stammler Willi Support device for use on masts of wooden scaffolding
US3121471A (en) * 1962-08-13 1964-02-18 Emil O Soderberg Climber
CH441080A (en) * 1965-04-26 1967-07-31 Ceskoslovenske Energeticke Z G Climbing device for walking on masts
FR1483752A (en) * 1966-01-13 1967-06-09 Pomagalski Jean Sa Rescue device and access to a high place
US3726360A (en) * 1971-02-18 1973-04-10 W Price Mast or pole climbing device
US3833090A (en) * 1973-08-29 1974-09-03 R Georgianna Settable lugs for climbing racks
US4407391A (en) * 1982-04-14 1983-10-04 Greenway Peter R Pole climber's safety device

Also Published As

Publication number Publication date
US5407025A (en) 1995-04-18
CA2127723C (en) 2003-12-16

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed